We propose a continuation of longitudinal muon spin depolarization measurements on mid-range SiGe alloys where a direct observation of T-site ionization is not possible because the T to BC site change barrier is smaller than the acceptor ionization energy below 75% Ge. We seek to obtain both the T-site acceptor energy and site-change barrier for a few mid-range alloys to complete our characterization of Mu in this alloy system. Energies extracted from relaxation features compared to those obtained by other techniques will verify assignment of specific dynamics to each feature, and changes across the alloy range provide additional checks. Preliminary data show that these measurements are feasible on HiFi with reasonable data rates for the small samples available in this alloy range and yield the relevant temperature and field ranges to maximize efficient use of additional requested time.